USB Port Blocker
USB Port Blocker is a small-sized and portable software utility that enables you to block USB port access to unauthorized users, as the name implies, by protecting it with a password.
It does not include complex settings, so the program can be handled by anyone, even people with no kind of experience in computer software.
Since there is no installation involved, you can drop the executable file in any directory on the hard disk and just click it to run, as well as run it on any machine without previous installers.
What's important to take into account is that the Windows registry does not get updated with new entries, and files are not left behind on the HDD after removing the program.
The interface is based on a regular window with a plain and simple layout, where you are required to specify a password at initialization.
Blocking and unblocking the USB ports is done with the click of a button. However, a system restart is required for the changes to take effect. In addition, you can alter the password at any time. There are no other options available.
USB Port Blocker has a good response time and runs on a very low quantity of CPU and RAM. No error dialogs were shown in our testing, and the tool did not hang or crash. Unfortunately, USB Port Blocker has not been updated for a long time, and it does not support newer operating systems. Otherwise, it should please especially novices, thanks to its overall simplicity.